Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 228 [Rate centres in NPA 228] [Dial plan for NPA 228]

NXX: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
228-600 A Tanner-Williams MS MOBLALAZ13Z  624H ONVOY SPECTRUM, LLC 480      
228-600 0 Tanner-Williams MS MOBLALAZ13Z  624H ONVOY SPECTRUM, LLC 480   2021-12-16   
228-600 1 Tanner-Williams MS MOBLALAZ13Z  624H ONVOY SPECTRUM, LLC 480   2021-12-16   
228-600 2 Tanner-Williams MS MOBLALAZ13Z  624H ONVOY SPECTRUM, LLC 480   2021-12-16   
228-600 3 Tanner-Williams MS MOBLALAZ13Z  624H ONVOY SPECTRUM, LLC 480   2021-12-16   
228-600 4 Tanner-Williams MS MOBLALAZ13Z  624H ONVOY SPECTRUM, LLC 480   2021-12-16   
228-600 5 Tanner-Williams MS MOBMALZY2MD  5562 METROPCS, INC. 480   2021-12-17   
228-600 6 Tanner-Williams MS MOBLALAZ13Z  624H ONVOY SPECTRUM, LLC 480   2022-07-29   
228-600 7 Tanner-Williams MS MOBMALZY2MD  5562 METROPCS, INC. 480   2021-12-17   
228-600 8 Tanner-Williams MS MOBLALAZX6Z  719E ONVOY, LLC - MS 480   2021-12-17   
228-600 9 Tanner-Williams MS MOBLALAZX6Z  719E ONVOY, LLC - MS 480   2021-12-17   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.